The main goal of ICO is to raise funding for the promotion of the project, which will give you profit in the future.
By buying EST tokens you are buying access to the contract balance, which consists of funds collected from ICO and 5% commission from each event reward.
More bettors - more profit.

Tokens can be generated only while ICO is going on. Its price linearly increasing from $0.30 to $1.00 within 30 days.
Contract owner getting 1.5x tokens that you bought.
After ICO owner's tokens should not be more than 30% of the total supply, so half of them will be withdrawn and spent on the promotion and development of the project.

Token

Token is a ticket that allows you to withdraw your stake of ETH from the available contract balance.
Your stake calculates by dividing your EST balance on total supply of tokens.

Available contract balance is a balance that contains commission only from finished events.
You can get it's value any time by calling availableBalance() function on the contract.